44214021 has 6 divisors (see below), whose sum is σ = 63864710. Its totient is φ = 29476008.

The previous prime is 44214013. The next prime is 44214047. The reversal of 44214021 is 12041244.

It can be written as a sum of positive squares in only one way, i.e., 40832100 + 3381921 = 6390^2 + 1839^2 .

It is not a de Polignac number, because 44214021 - 2³ = 44214013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 44213985 and 44214003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44214011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2456326 + ... + 2456343.

Almost surely, 2^44214021 is an apocalyptic number.

It is an amenable number.

44214021 is a deficient number, since it is larger than the sum of its proper divisors (19650689).

44214021 is a wasteful number, since it uses less digits than its factorization.

44214021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4912675 (or 4912672 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 44214021 is about 6649.3624506414. The cubic root of 44214021 is about 353.6063084747.

Adding to 44214021 its reverse (12041244), we get a palindrome (56255265).

The spelling of 44214021 in words is "forty-four million, two hundred fourteen thousand, twenty-one".